... 频率响应函数 frequency response function 调频讯号 frequency-modulated signal 调频讯号 frequency-modulated signal ...
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frequency-modulated signal generator 调频信号发生器
Linear Frequency Modulated Signal 线性调频信号
frequency modulated signal 调频信号
nonlinear frequency modulated signal 非线性调频信号
tg-frequency-modulated signal 正切调频信号
liner frequency modulated signal 线性调频信号
pulsed frequency-modulated signal 脉冲频率调制信号
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For wireless digital communications, digital user signal is usually at first converted into analog domain and then modulated to radio frequency by one or two steps.
对于无线数字通信而言，通常将数字用户信号首先转换到模拟域中，然后通过一个或两个步骤将其调制到无线电频率。
The fault is diagnosed by extracting the fault feature component from the frequency spectrum of the modulated signal.
通过对调制信号作谱分析，以其频谱中是否存在某种故障的特征频率分量来诊断有无该种故障。
A modulated high-frequency signal is distorted by the thermal behaviour through complex intermodulation phenomena, although the temperature response of the circuit is slow.
虽然电路对温度响应性很低，调制的高频率信号也会由于热行为产生的复杂的互相调制现象而发生失真。
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